Allow me to restate your comment more briefly: "The F-35 depends on your definition of success. It has not achieved the goals in its original funding application, but some of its traits might inspire future traits in future other things that might turn out to be good and worth the money we've spent so far, so therefore it's not right to call it a failure yet."
That's not a friendly restatement, no. "Might" does not make right.
That's not a friendly restatement, no. "Might" does not make right.